Lab Exam 1 Flashcards

1
Q

Cells that contain hemoglobin and transport respiratory gases

A

Erythrocytes

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2
Q

List 5 types of Leukocytes

A
  1. Lymphocytes
  2. Monocytes
  3. Neutrophils
  4. Eosinophils
  5. Basophils
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3
Q

Cells that directly attack antigens

A

Lymphocytes

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4
Q

Cells that function in phagocytosis

A

Monocytes

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5
Q

Cells that phagocytize bacteria

A

Neutrophils

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6
Q

Cells that respond to helminth infections

A

Eosinophils

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7
Q

Cells that release histamine causing inflammation and vasodilation

A

Basophils

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8
Q

Cell fragments that function in hemostasis and coagulation

A

Thrombocytes

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9
Q

Name the 3 formed elements of blood

A

Erythrocytes, Leukocytes, and Thrombocytes

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10
Q

____ exit the blood and enter tissues and differentiate into macrophages.

A

Monocytes

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11
Q

____ include both T cells and B cells.

A

Lymphocytes

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12
Q

Name the 3 granulocytes (that contain cytoplasmic granules visible after staining)

A

Neutrophils, Eosinophils, & Basophils

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13
Q
A

Basophil

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14
Q
A

Eosinophil

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15
Q
A

Lymphocyte

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16
Q
A

Monocyte

17
Q
A

Neutrophil

18
Q

Provides a smooth outer surface of the heart

A

Epicardium

19
Q

Functions to allow the heart to contract

A

Myocardium

20
Q

Provides a smooth lining of the heart chambers and to cover the valves

A

Endocardium

21
Q

Tissue layers of blood vessels, internal to external

A
  1. Tunica interna
  2. Turnica media
  3. Turnica externa
22
Q

Function of the venous valve

A

Prevents back flow of blood in veins

23
Q

Function of left and right auricles

A

Increase atrial volume

24
Q

Describe the Fossa ovalis

A

Fetal remnant of foramen ovale

25
Q

Describe the Ligamentum arteriosum

A

Fetal remnant of ductus arteriosus

26
Q

Function of the Chordae tendineae

A

Achors the AV valves to the papillary muscles

27
Q

Function of papillary muscles

A

Contract to pull the chordae tendineae to open the AV valves

28
Q

Function of the Trabeculae carneae

A

Part of the heart’s conduction system

29
Q

Describe the Tunica interna

A

Tissue layer composed of endothelium (simple squamous)

30
Q

Describe the Tunica media

A

Tissue layer composed of smooth muscle

31
Q

Describe the Tunica externa

A

Tissue layer composed of collagen and elastic fibers

32
Q

Describe the SA node

A

Cells generate about 75 impulses per minute; sets the pace of the heart and provides the sinus rhythm that determines heart rate

33
Q

Describe the AV node

A

Myocardial cells that conduct impulses slowly from the SA node

34
Q

Describe the AV bundle

A

AKA Bundle of His; myocardial cells conduct impulses from AV node to the bundle branches

35
Q

Describe bundle branches

A

Myocardial cells that conduct impulses from AV bundle through interventricular septum to Purkinje fibers

36
Q

Describe Purkinjie fibers

A

Myocardial cells that cause the contractile cells of the ventricles to depolarize (initiate action potentials)